org.springframework.beans.factory.config

接口 BeanExpressionResolver

public interface BeanExpressionResolver

Strategy interface for resolving a value through evaluating it as an expression, if applicable.

A raw BeanFactory does not contain a default implementation of this strategy. However, org.springframework.context.ApplicationContext implementations will provide expression support out of the box.

从以下版本开始:

3.0

作者:

Juergen Hoeller

方法概要

限定符和类型	方法和说明
Object	evaluate(String value, BeanExpressionContext evalContext) Evaluate the given value as an expression, if applicable; return the value as-is otherwise.

方法详细资料

evaluate

@Nullable
Object evaluate(@Nullable
                           String value,
                           BeanExpressionContext evalContext)
                    throws BeansException

Evaluate the given value as an expression, if applicable; return the value as-is otherwise.

参数:

value - the value to check

evalContext - the evaluation context

返回:

the resolved value (potentially the given value as-is)

抛出:

BeansException - if evaluation failed